Is anybody else having issues tabbing into this field when the field is empty? It works fine for me when there's a selected value, but when the field is empty and I hit tab from the previous field in the form, it just skips over it. Any way to correct this behavior?

So I've managed to override some CSS to get around this. Here's the rule I added:

Basically, as far as I could tell, the reason you can't tab into an empty field is that the <input> tag gets hidden when the field is empty, so it gets skipped over. With the CSS above, I override the display and set it to block so it's not hidden and then I set a negative absolute position to hide it without hiding it, for lack of a better way of putting it. Seems to work fine for me so far, haven't run into any problems.